 t       This file uses Thomsen notations
            3     number of layers
            0     layer#           1 is isotropic
    3000.000         compressional velocity (m/s)
    1600.000         shear velocity (m/s)
    2.800000         density (g/cm3)
    200.0000         thickness of layer#           1
            0     layer#           2 is isotropic
    3200.000         compressional velocity (m/s)
    1700.000         shear velocity (m/s)
    2.700000         density (g/cm3)
    300.0000         thickness of layer#           2
            0     layer#           3 is isotropic
    3300.000         compressional velocity (m/s)
    1750.000         shear velocity (m/s)
    3.100000         density (g/cm3)
